Bosses No Knockback

Many bosses feel trivial because a player can stunlock them: each hit pushes the boss back, and even a weak weapon such as a wooden sword can keep the boss from ever reaching the player. Some boss mods add their own anti-cheese logic for complex pattern attacks, but older or simpler mods do not, so this mod takes a universal approach instead. It is a NeoForge mod for Minecraft 1.21.1 that runs on the server only, and it is released under the MIT License, which means it is not open source.

The mod checks the contents of the c:bosses tag, so bosses from modern mods that use that tag are covered without extra setup. Vanilla bosses are already included. Some bosses are not tagged properly by their own mod, and in that case the server owner can add the bnk:knockback_immune tag to the entity list. Individual bosses can also be excluded from immunity by adding the bnk:blacklist tag. Because nothing stops any entity from receiving the bnk:knockback_immune tag, a server can make almost any mob immune to knockback.

Bosses No Knockback only needs to be installed on the server. Players who run client-side mods that change knockback may see visual issues, and the author has not yet tested that combination. The mod is published only for 1.21.1 and was first released on 2026-06-04, and the author notes that the name may change in future.